Improved wood-bending machine



y UNITED STATES PATENT OFFICE..

sAMUEL KINGsLAND, on LYNDoN, wisconsin.

IMPROVED WOOD-BENDING MACHINE.

. Specification forming part of Lettersv Patent No. 35,983, dated JulyQ2, ISF?.

To @ZZ whom it 77mg/ concern:

Be it known that I, SAMUEL KINGsLAND, of the town of Lyndon, county ofJuneau, and State of Visconsimhave invented a new and useful Machine forBending Vood; and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, in which-Figure l is atop or plan View, and Fig. 2 a side view, of the same.

The nature of myinvention consists in providing suitable mechanism, inconnection with Va heated cylinder, whereby the wood in an unseasonedstate, or, if seasoned, after having been soaked in water, is bent inany desired form over said heated cylinder and retained in that positionuntil, by a process of seasoning or evaporation, it is caused topermanently retain the form imparted to it by the bending process hereindescribed.

To enable others skilled in the art .to make and use my invention, Iwill proceed to describe its construction and operation.

I construct ahollow cylinder, of cast-iron or other suitable material,of any desired form and size,- or .parts of which may be of different fsizes and form, as represented in the drawings,

where B is a continuation of the cylinder A of less dimension, andconsequently of less curvature. This may be again subdivided in itsextent, laterally, so as to present in the same machine a series offorms, being parts or sections of the same hollow cylinder. An openingis provided in said cylinder at some suitable point, as at h, for theintroduction of fuel, the same being provided with suitable means forsecurely closing the same, so as to prevent the escape of the f'uel whenthe cylinder is revolved, or to prevent the escape of ashes or smoke,which would otherwise interfere with the operation thereof. At one endof this cylinder is provided, by suitable means for revolving` it, acrank, e, with its handlef, through the axis of which is an aperture, b,for the purpose of furnishing ventilation to the fire-chamber withinsaid cylinder, which passes its entire length, and is provided at theother end with a suitable pipe or chimney to secure the necessary draft,and to convey away through the roof of the building or into the chimneythe smoke or gases from within the cylinder. The lower extremity of thischimney or pipe is fitted over a projection of the cylinder, whichrevolves with it, so that the same may revolve within thepipe, andthrough which the smoke passes into it, as represented at O in Fig. l'.At suitable points on the exterior of the said cylinder is providedappropriate gearing, d', as represented in Fig. 2 and at d', Fig. l. Ateach end, and at suitable intermediate points on said cylinder, areprovided suitable journals, to be supported and revolve on the bearingsin plates C C C, as hereinafter more particularly described. The platesG C C, or any desired series of them, serve as the frame upon which thecylinder and other mechanism of my invention are supported. The outerplate, C, as represented in the drawings, which supports the end of thecylinder into which the fuel is fed, as represented, is provided with asufficient opening or bearing for the journal on which the crank e isfixed; and said plate is so formed on its upper and Vinner edge as tocorrespond with the form of the cylinder, and extending above thecylinder, as represented in Fig. 2, for the purpose of mounting above ita series of feedrollers, with their gearing, set -screws, and bearings,as shown. Upon the curved edge of said plate C is secured, `by screws s,a plate, j, with its corrugated or projecting edges n. Corresponding tosaid projecting edges a of said platej, and immediately under them, areprojections o, fastened securely to or cast with the said plate C.Immediately under the projections o are cut, in said plate C, thebeveled slots t, into which are fitted the sliding boxes m, provided attheir upper ends with projections o. The slots t are cutwith bevelededges inwardly, and the sliding boxes m have their corresponding bevelededges so that the said boxes cannot pass through said slot outwardly,but are perfectly free to move up and down therein and are removableinwardly. Through the projections n, n, and o are passed the setscrews gg g, for the purpose of adjusting the sliding boxes m up and down in theslots t, as

may loe desired. Near the center of the slidf ing boxes m are suitableholes or bearings to receive the journals of the feed-rollers a a ce a,as shown in Fig. 2. The feed-rollers a a a a are provided with pinionswhich mesh into and are operated by the gearing d on the cylyInder. Acorres Jondino late C provided I D p 7 7 with a plate, j, with itsprojections 11beveled slots t,'sliding boxes m, with their lbearigs toreceivethe other end ofthe feed-rollers a, projections c and a', andset-screws g for the support and adjustment of said feed-rollers attheother end, is provided, as represented in Fig. 1. A plate, C is shown inthe drawings as asupport for the other end of the cylinder, and isprovided with a suitable bearing for the support of its journal, andthrough which passes the projection to receive the pipe c', and to theupper edge of which is secured a support, of, through which in itsupward angle passes 'said pipe. The plates C C C are secured iirmly inthe desired position by crossbraces a a', suitably bolted, and across-tie of timber, m', at their outer end. The crossbraces a alsoserve as a fulcrum to receive the end of the wood to be bent over thepart of the cylinder B by hand manipulation or other suitable means.

The operation ofthe machine, with reference to the feed-rollers, is:After sufficiently heating the cylinder A B the wood to be bent isinserted in an unseasoned or soaked state ,between the feed-rollers aand the heated cylinder, the said rollers having been properly adjustedby means of said set-screws. Then, by revolving the crank, the wood isdrawn .in between the heated cylinder and lfeed-rollers and around thecylinder, and is thus retained until sufficiently seasoned to retain itsnew form,

the same being for a few minutes only. TheV crank is then turned back soas to discharge the be'nt wood4 preparatory to a repetition of theoperation; or, for lightwork, the bending processmay be conducted byhand manipulation, as stated, the bent wood being retained in place byany suitable fastening the desired time for the drying or seasoningprocess.

The peculiar advantage of my invention consists in the use ot' a heatedcylinderhaving its external walls of suitable form for bending wood asmay be desired, in connection with the means for operating the same, asdescribed, whereby the steaming process preparatory to wood-bending isavoided and a most permanent result secured, of any desired form, of alast-ing nature, in a very few moments of time, the wood passing intothe machine in an unseasoned or soaked state and being deliveredtherefrom,without material delay, permanently bent and in a dry andseasoned condition, supplying an article which will be proof againstweather and will retain its new form under every condition and use.

Having thus described my invention, what I desire to secure by LettersPatent isl. The application to wood-bending of hollow cylindrical forms,constructed, arranged, and operated as herein described.

2. The construction and arrangement of the metal plat-es C C C, incombination with the hollow cylinder A B, arranged thereon and securedtogether by the cross -braces a a and cross-tie m', with their journalsand journalbearings, crank e, door h, draft-hole b, and pipe c, allarranged in the manner and for the purpose specied. Y

3. The peculiar means of adj ustmentfor the feed-rollers c a a a bymeans of the projections n, c, and o', set-screws g, and sliding boxesm, all being arranged, constructed, and operating in the manner and forthe purpose described.

4. A wood -bending machin-e combining a lheated cylinder or cylindricalforms supported by plates C C C, or equivalent means, with their meansof adjustment as described, supplied with fuel and heated in the mannerdescribed, and operated by a crank or other equivalent means,substantially as and for the purpose specified. f

SAML. KINGSLAND.

